On Track Procession Assignment Problem at the Railway Network Sections

We consider the problem of assigning a “track procession,” i.e., the time for railway network maintenance, when train movements are forbidden. The railway network is presented in the form of an undirected multigraph. Movements along this multigraph are carried out with a set of conflict-free subslots, where each “subslot” is a five-tuple of the arrival and departure vertices, number of the edge used for movement, and arrival and departure times....